Summary of Pentatonic Master. When practicing to play ROCK guitar solos, BLUES phrases, or JAZZY passages like Jimi Hendrix played, you will need musical theories and many scales as follows. ▼minor pentatonic. ▼major pentatonic. ▼BLUE NOTE (♭5th）. ▼CHORD ▼MODE ▼pitch name. These theories are difficult to understand, and hard to memorize.